Windmill



(No Model.) 2 Sheets-Sheet 1.

B. FOSKETT.

- Windmill. No. 237,851. Patented Feb. 15,1881.

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N PEYERS. PMOTO-LITHOGRAPNER, WASHINGTON a C v (NoModeL) 2She ets-Sheet2.

v B. FOSKETT.

Windmill.

NO. 237,851. Patented Feb. 15, I881.

".PETERS, PNOYQ-LIYNOGRAPNEIL WASHINGTON. 0 C.

UNITED STATES PATENT OFFICE.

EDWARD FOSKETT, OF SAN JOSE, CALIFORNIA.

WINDMILL.

SPECIFICATION formingpart of Letters Patent No. 237,851, dated February15, 1881.

' Application filed September 20, 1880. (No model.)

To all whom it may concern:

Be it known that I, EDWARD FOSKETT, of San J os, county of Santa Clara,and State of California, have invented an Improved Windmill andRegulator; and I hereby declare the following to be afull, clear, andexact description thereof.

My invention relates to certain improvements in windmills; and itconsists in the employment of a vertically-oscillating beam which 'isbalanced upon the upper end of a vertical rotating post or standard, andis provided at one end with a rudder which holdsit in line with thewind, While the other end supports a frame containing a series of vanes.These vanes have their ends journaled in the frameandiare united by arod, like the shutters of a window-blind, so they may be turned to anangle ineither direction in unison. When thus turned the action of thewind upon them will cause the oscillating beam to be moved up or down.111 combination with this apparatus is a novel device by which the vaneshave their angle changed at the end of each stroke, so as to produce areturn-stroke, and a regulating device by which the angle of the vanesmay be adjusted to suit the strength of the wind, or by which they maybe made to stand with their edges to the wind,so as to stop the millaltogether.

My invention further consists in certain details of construction, all ofwhich will be more fully described by reference to the accompanyingdrawings, in which Figures 1 and 2 are side views of my windmill. Fig. 3is a section. Fig. 4 is a front view of the vanes.

Let A represent the upright post or standard, which is supported uponthe frame of the mill so as to rotate upon a vertical axis. To the upperportion of the head A the bar D is pivoted at a, so that it may movefreely up and down on its central pivot or axis, thus producing avertically-reciprocating motion.

To the central lower side of the bar D is attached the pitman orpump-rod E, by means of a joint, as shown.

At one end of the vibrating bar D is the rudder-vane F, which serves tohold the bar and its operating-arms or fans toward the wind. Aspring-arm, B, projects from the inner end of this rudder, or from someother convenient point, and a lug, G, on the postA is so placed thatwhen the baris depressed the spring strikes the lug and relieves thestrain. A cord or chain, I), extends from the end of the spring to thepost, as shown, so that it will act to relieve the strain of theupstroke in the same manner. To the opposite end of 'the bar D isattached, at right angles to the sides alternately at an angle to thewind, and 7 when they stand in these positions the action of thewindupon them will depress or elevate that end of the bar D which carriesthem, so as to produce a reciprocating motion ofthe bar. I

The alternate change of angle of the fans at each vibration of the bar Dis produced by the action of two stationary arms, H, which are securedto the post A, projecting out so as to act upon two inclined arms, I.These arms are secured to a vertical lever, J, pivoted to the bar D, oneof the arms being above and the other below, so that when the bar Dvibrates, these inclined arms I will strike the stationary arms H, andwill thus cause the lever J to tilt backward or forward. This lever hasan arm, K, projecting from its upper end toward the fan-frame, and aconnectingrod, L, unites it with the center of the shutter or fan-rod h,as shown. By this construction the tilting of the lever J willoperate tochange the angle of the fans or vanes at each vibration of the bar D.The tilting of this lever J to produce the change of angle of the vanesmay also be accomplished entirely or assisted by a weight, M, which issecured to the top of the lever J in such a position that when the bar Dhas the end depressed this weight will pass the center of its lever andtilt it by gravitation, and when the bar rises it will be carried beyondthe center in the opposite direction, and

thus tilt it to that side. In the present case I depend upon both thegravitation and the positive action of the arms to produce the change ofangle of the vanes.

In order to regulate the angle to which the vanes may be turned, or toset them centrally to stop the mill, I employ two inclined orwedgeshaped blocks, N N, which are united by clamps or cross-bars, so asto slide upon the top and bottom of the bar D and move between the endsof the inclined arms I. A rod, 0, connects the slides N with the uprightarm I, which is pivoted to the post A, and has the vane Q upon its upperend. The lower end of the arm Pis weighted, and the weight may be madeadjustable, if desired. This weight returns the arm to a verticalposition when the wind falls or is light, and resists the tendency ofthe wind to blow the vane Q backward. When the wind is strong and blowsthis vane back the rod 0 will draw the slides to a point between theends of the arms I, and by decreasingtheir motion will lessen the angleof the vanes or fans 9, and thus reduce the speed of the mill.

\Vhen the slides are fully drawn between the ends of the arms I, theywill be held in such a position that the vanes will stand parallel andwith their edges to the wind, so that there will be no action in eitherdirection. This is done automatically by the action of theregulating-vane when the mill is running; but if it is desired to stopthe mill altogether a cord, It, leading from the vane Q to the ground,may be employed to pull the vane hack, and thus throw the vanes out ofthe wind.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- 1. The series of fans g, pivoted at theirends in the frame G, and united so as to move in unison, in combinationwith the tilting-lever J, with its arms I, and the stationary arms orlugs H, bar I), and rod connecting the fanframe to the lever, wherebythe oscillation of the bar 1) causes the lever J to be tilted, and

the angle of the fans is changed at each oscillation, substantially asherein described.

'2. In combination with the fans g, pivoted in the frame G, at one endof the verticallyoscillating bar D, and united to move in unison, asshown, the lever J, connected with the fans and journaled on the bar D,so as to tilt forward and back, and provided with the weight M at itsupper end, so that the oscillations of the bar 1) will cause the weightto gravitate alternately to one side and the other of the pivot of thelever J to tilt it and reverse the fans, substantially as hereindescribed.

3. The combination of the bar D and the wedge-shaped or inclined blocksN N with the arms I I, suitably pivoted, and means for operating theblocks, whereby the movement of the arms and fans is limited,substantially as set forth.

4. The regulating device consisting of the inclined or wedge-shapedslides N, moving'between the ends of the arms I, in combination with thebar D and the vertical arm P, with its vane Q and weight, whereby themovement of the regulator is rendered automatic and dependent upon theforce of the wind, substantially as herein described.

5. The oscillating windmill having the inclined reversible vanes or fanswith their operating device at one end of a bar, D, and the rudder ortail F at the opposite end, in combination with the spring 13, the lugO, and chain 1), to relieve the strain, substantially as hereindescribed.

EDWARD FOSKETT.

Witnesses:

A. M. OGAN, D. CARR.

